Citation: Camara, F.; Ciriotti, M. E.; Bittarello, E.; Nestola, F.; Massimi, F.; Radica, F.; Costa, E.; Benna, P.; Piccoli, G. C. (2014). Arsenic-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: I. Grandaite, Sr2Al(AsO4)2(OH), description and crystal structure. Mineralogical Magazine, 78, pp. 757-774.